70072080 has 160 divisors (see below), whose sum is σ = 240651264. Its totient is φ = 16754688.

The previous prime is 70072061. The next prime is 70072081. The reversal of 70072080 is 8027007.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 70072080.

It is not an unprimeable number, because it can be changed into a prime (70072081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115137 + ... + 115743.

Almost surely, 2^70072080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70072080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120325632).

70072080 is an abundant number, since it is smaller than the sum of its proper divisors (170579184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70072080 is a wasteful number, since it uses less digits than its factorization.

70072080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 70072080 is about 8370.9067609190. The cubic root of 70072080 is about 412.2699396664.

Adding to 70072080 its reverse (8027007), we get a palindrome (78099087).

The spelling of 70072080 in words is "seventy million, seventy-two thousand, eighty".